Music-roll holder.



I. 'B. SMITH.

MUSIG ROLL HOLDER.

APPLICATION FILED nov. a, 1905.

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' I. B. SMITH.

MUSIC ROLL HOLDER.

APPLICATION FILED NOV. 8, 1905.

1,008,440. I Patented Nov. 14,1911.

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I. B. SMITH. MUSIC ROLL HOLDER.

APPLICATION FILED NOV. 8, 1905.

Patented Nov. 14, 1911.

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. I. B. SMITH.

MUSIC ROLL HOLDER.

APPLICATION TILED WV. 5, 1905.

1,008,440, Patented Nov. 14, 1.911;

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I. B. SMITH.

MUSIC ROLL HOLDER.

APPLICATION rum) NOV. 8. 1905.

1,008,440. Patented Nov. 14, 1911.

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UNITED srarnsg rnnr onmos.

IRVING B. SMITH, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNEASSIGN- MENTS, TO ELEGTRELLE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A.CORPO- RATION OF PENNSYLVANIA.

MUSIC-ROLL HOLDER.-

To all whom it may concern:

Be it known that I, IRVING B. SMITH, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements in Music- RollHolders, of which the following is a specification.

This invention relates to improvements in music roll holders forautomatic musical instrument players, particularly adapted to supportthe music roll and take-up roll in cooperative relation to the 'rollactuating means and correlated mechanism.

The invention has for its object to provide a music roll holder capableof the operations hereinafter set forth, and combining means forcontrolling and regulating the operation of the music roll and take-uproll and the devices for rotating the latter, so associated thatcomplete control of the instru- -mentalities is had by the use of aminimum of operating levers.

The invention resides in a roll holder possessing the features, elementsand combination of elements hereinafter set forth.

That which is regarded as new will be set forth in the accompanyingclauses of claim.

In the drawings which illustrate the best known embodiment of myinv'ention-Figure 1, is a top plan View, the music roller being removed.Fig. 2, is a vertical section near one of the end members of the frameillustrating the means for driving the takeup roll and means: forcontrolling or vzlti rv 1 3, 1s a similar View near the other end of the frame illustrating the contact roll cradle, the means for shifting thesame to move it into active or inactive position, and the music rollbrake. Fig. 4:, 1s a view similar to Fig. 3, showin the brake andcontact finger guard. Fig. 5, a detail front elevation of the take-upT011 and associated parts. Fig. 6, a view partly in elevation and partlyin section, showing parts of the take-up roll driving mechanism. Fig. 7,a bottom plan view of some of the parts shown in Fig. 6.

'Fig. 8, a sectional view of one end of the take-up roll, its shaft andclutch. 'Fig. 9, a

detail of" the clutch operating mechanism.

Fig. 10, a detail sectional view showing the connection between thefriction-disk shaft,.

Specification of Letters Patent.

Application filed November 8, 1905.

Patented Nov. 14:, 1911.

Serial No. 286,412.

and the flexible motor or driving shaft. Fig. 11, a view on the line11-11 of Fi 10. Fig. 12, a perspective of the contact r0 1 cradle. Fig.13, a perspective view of the means for controlling and varying theaction of the take'up roll driving mechanism. Fig. 14, a side view ofroll-holder frame adapted to be moved in under the piano key base andwithdrawn therefrom, and also, when withdrawn, to be elevated foroperation and lowered to enable it to be moved beneath the piano keybase. Fig. 1.5, a perspective View of the rearbar of the frame shown inFig. 1 1. Fig. 16, a perspective view of the roll holder support locatedbeneath the piano key base. Fig. 17, a perspective of the connectingelement by which the roll holder frame ma have a sliding and pivotalconnection with said support.

In the said drawings the reference numerals 1 and 2 designate'the endmembers of the roll-holder frame, and 3 and 4: the front and rear barsthereof. The end members are referably hollowed out as shown to provi echambers 5, in which elements of the actuating mechanism are dis osed,and to decrease the weight of the r3llolder frame. Said members areprovided with marginal webs 6 of the original thickness of the materialof which they are :onstructed, to afford desired rigidity and stren h;and bosses in which various elements 0 the mechanism have bearing arepreferably formed integral with the side members and of the originalthickness of the material thereof.

Having particular reference to Fig. 1 of the drawing in which isillustrated one manner and means of connecting the rollholder frame to amusical instrt ment, for instance, a piano, so that said frame, and theelements carried thereby, may be shifted in beneath andhoused under thepiano key- 7 base; the bar 4: is provided witl. guides 7 having channelsor we s 8 adapted to engage asupport and guiderail 9 (Fig. 16) connectedunder the piano ke a'se r and upon which s'upportthe r0 lh older maymusic roll is supported in arms 10 projecting upwardly from therollholder frame, said frame is mounted not only that it may be movedbeneath the key-base, but is also capable of being swung in a directionat an angle to its in-and-out sliding movement for the purpose ofbringing the music roll, (the operative position of which wit-hrelation. to the key-base is illustrated in said Fig. 14 of thedrawing), below the piano key-base preparatory to and to enable the rollholder mechanism to be shifted in under said key-base, and when movedout for operation, to be swung up into the operative position shown.This is accomplished in the illustrated and preferred embodiment shownin the drawing Figs. 14 to 17, by pivotally connecting the rear bar 4 toa slide 11, provided with pivot pins 12 journaled in ears 13 on the bar4, the forward portion of the slide resting flush in a seat 14 in saidbar. The slide is movably connected to a support 9 (hereinbeforereferred to) secured to the instrument casing beneath the key-base, by atongue and groove connection 15. The tilting or swinging movement of themusic roll holder is limited by a stop 16 with which the bar4is providedin a position to come into contact with the slide I when the roll-holderis swung downward, thus limiting the degree of such motion. Theroll-holder is maintained in operative playing position by means of acatch 17, associated therewith, the nose of which looks over. upon theslide, as best shown in Fig. 15. i The catch is a pivoted one and has afinger piece 18 within reach of the operator whereby it may be released,the roll-holder swung upon its hinge or pivotal connection with theslide, and, together with said slide, be pushed in under the key-base ofthe instrument, out of the way when not in use. In use, the roll holdermay be lifted from its lower position to that shown in Fig. 14, andacting upon the cam nose of the catch 17 pushes the latter out of theway after which the catch aided by its spring assumes the positionillustrated in Fig. 14: and holds the roll holder in the position shownin said figure.

As illustrated in Figs. 2 to 4, the musicroll or spool 19, onv which theperforated music sheet is wound, and on which it is incorporated intothe holder, is arranged above the take-u roll 20.

The interrelation of the music and takeup rolls one above the other, asshown and described, is of material advantage, in that the music sheetis caused to travel from one .roll to the other with its facesubstantially The swinging capacity of the roll-holder enables the rollsto be disposed high in the holder, the music-feed roll standing in frontof the key-base of the piano as in Fig. 14.

This brings the music sheet up high intov the line of vision oftheoperator, and allows ample room for the knees of the operator sittingin front of the instrument.

The bearing at one end of the music-roll consists of a spring plug 21arranged in a barrel 22, in which, behlnd the plug is arranged thespring 23. This arrangement facilitates the ready insertion and removalof the music roll from the holder. The opposite end of the music roll isprovided with a female recess (not shown), to engage a correspondinglyshaped wing 24: (Fig. 3) in a shaft 25 rotatably mounted in the adjacentend member of the frame, and, as best shown in Fig. 1, this shaft isprovided with a brake hub or collar 26, to cooperate with brakemechanism as hereinafter described, and with a multiplying gear 27, inmesh with a hand rotatable gear 28, by which instrumentalities themusic-roll may be rapidly rotated to rewind the music sheet thereon.

Take-up roll 20 is arranged loose upon a driven shaft 29 situated belowthe musicroll to the end that it may, during the rewind of themusic-sheet, rotate upon and independently of said shaft. This shaft, asshown in Fig. 8, rotates in a ball bearing 30 which may be of anysuitable, known type. Through the medium of the shaft the takeup roll isassociated with friction driving mechanism, and also with means by whichit may be caused to rotate with said shaft or permitted to rotateindependently thereof, as hereinafter described. As shown in Figs. 1 and2 the driving mechanism consists of a worm wheel 31, rigidly connectedto or formed with the shaft of the take-up roll in mesh with which is aworm 32 on a shaft 33, journaled in bearings 34% with which the sidemember of the holder is provided. This shaft carries a frictiontransmitter wheel 35 the tread of which may be faced with rubber asshown at 36. An opening or passage 37 in the side member of the frame isprovided, in the particular embodiment ofthe invention illustrated, toaccommodate the wheel 35. cooperatively arranged in relation to thefriction transmitter wheel is a driver 38 consisting of a disk angularlydisposed with relation to said transmitter wheel, the face of which isdesigned to contact with the wheel tread, and impart rotation thereto.

The relation of the driver and transmitter part interlocking ends of theshafts,

the driver 38 and wheel 35 in all positions of adjustment of driver 38.The driver 38 is mounted upon a shaft 39 journaled in hangers 40connected with the driver carrier 41, hereinafter set forth. Undue endlay of the shaft 39 is prevented by thrust co lars 42 arranged thereonat opposite sides of one of the hangers. The shaft 39 is driven by aflexible shaft 43 actuated from any suitable normally continuouslyrunning motor. The shaft coupling may be of any suitable type, thatshown being of the nature of counter and an inclo-sing sleeve 45 to holdsaid portions in interlocked engagenment. As shown the flexible shaft isarranged in a casing or sheath 46 of metal, rubber, or other suitabletubing. The pas sage. 47 through the side member of the =-frame may beprovided with a vibration dissipater consisting, as shown, of a felt Thedriver as described, is connected to and partakes of the movement of thecarrier 41, which consists of an arm fulcrumed upon a fulcrum pin 49,which enters a fulcrum for the flexible shaft and its casing washer 48.

socket 50 in the carrier. The carrier together with the driver supportedthereby, may be swung in an are upon the fulcrum pin to presentdifferent portions of the surace of the driver against the frictiontransmitter wheel, to alter the speed of rotation of the latter. The.relative position of the driver surface to the wheel is governed byacontroller lever 51, with which it is connected by a link. 52. As shownthis lever is articulated in a bearing the and by manipulation thereofthe accurately according to the tempo of the music be1n played. It isobvious that by adjusting t e driver with its dead center in contactwith the transmitter wheel, there will be no rotation of the latter, andthe travel of the music sheet will cease.

Means are provided in connection with the driver and its carrier,whereby the former may be withdrawn from contact with the transmissionwheel, to enable the performer to arrest the travel of the music sheetand prolong or sustain any desired note or group of notes according tohis individual taste or conce tion of the composition being played.'Thisis accomplished by shiftably mounting the driver carrier andconnecting the tempolever 51 thereto. This tempo lever is not onlycapable of being swung about a pivot, but also has lateral movement, sothatit may be moved to shift carrier 41 and withdraw the driver 38altogether from engagement with the wheel 35. The lever 51 may beconnected to a side member of the frame by or key portions 44 of the andis dis osed ball or other articulated joint, or, as shown it may beconstructed of material capable of being flexed laterally; the carrieris permitted to be shifted with respect to its fulcrum pin byelongating; the fulcrum slot as shown. A shifting rod 52 provided vi itha shoe 53 to engage the carrier, preferably by way of a hub 54surrounding the fulcrumpin-socket thereof, is connected to a rock arm 55mounted in bearings 56 carried bv one of the side members of the frame;an with the free end of this rock-arm the cont roller lever is adaptedto be connected and disconnected. As shown the free end of the rockarmis arc-shaped and the controller lever is provided with a hook 57, whichwhen the controller lever is moved. to the position shown in Fig. 13,engages the rock-arm. When it is desired to withdraw the driver fromcontact with the transmitter wheel the controller lever is swung toengage the rock arm and is then moved laterally, rrcking said armshifting the rod 52, and thro igh it the driver carrier to withdraw thedriver from contact with the transmitter wheel. The driver is normallyheld in contaciwithv the transmitter wheel, and the elements of thethrow-out mechanism described are restored to initial position, afteroperation, automatically, in the present instance by means of a spring58 working against the carrier, as best shown in Fig. 6.

In the operation of the mechanism the music sheet is drawn from themusic roll by the take-up roll, the former rc tating under the impulseof the drawin action of the latter. To the end that the sheet shall bepresented properly to the instrumentalities that cooperate with tho;note perforations thereof, said sheetsho'ild be under appropriatetension. To accomplish this, brake-mechanism is associated with themusic roll, such mechanism being of a char acter to permit the musicroll to give off the sheet as required, and yet prevent voluntary orover rotation of the roll by reason of momentum or otherwise. Thebrakemechanism shown comprises a shoe 59,dis ased to work against thebrake-hub 26 on t e bearing for one end of the music roll, which bearingis normally connected for rotation with said roll. The said shoe iscarried. by one arm 60 of a two-arm lever; the other arm 61 of whichcooperates with mechanism to release the brake during the rev'indingoperation as hereinafter set forth. Associ ated with the shoe-carrierarm is a spring 62 which holds the-shoe'in engagement with the brgkehub, and the pressure 0 which is regula le.

As shown, said spring, for this purpose, is connected to a plate f 3with which is combined an adjusting screw 64 by manipulation of whichthe tension of the spring may be varied. Theclutch by which the take-uproll 20 is-connected to is shaft 29, is best shown in Fig. 8, andcomprises a movable member 65 arranged on a hub 65 of the take-up roll.The hub has a keyseat 67, in which works a key 68. The keyseat iselongated as shown to ermit movement of this member to inter ock withthe fixed member 69 of the clutch, with which, as shown, it is adaptedto have a pin and socket connection. The fixed member of the clutch isconnected to the shaft and is provided with pins 70 to engage thesockets 71 of the movable member. Normally the clutch elements areinterlocked to drive the take-up roll, and as shown, are held inengagement by a spring 72, which, when free .to act after release orseparation of the clutch members, automatically establishes interlockingof said members.

Mechanism is combined with the clutch to automatically release thetake-up roll from the shaft during rewind of the sheet onto themusic-roll. This mechanism is associated with the contact-roll cradledetached in Fig. 12) so that when the contact roll 74, carried thereby,is Withdrawn .from operation the take-up roll is automatically releasedfrom its driving shaft and runs as an idler thereon. The cradle isjournaled intermediate its ends and is capable of rocking about itsjournal for the purpose of withdrawing the cont-act roll from operativerelation to the music sheet and contact fingers as hereinafter setforth. The

cradle journal preferably consists of the casing or cage 30* of the ballbearing 30 for the end of the shaft as best shown in Fig. 8

and the hub 75 of the cradle is provided with a bolt 76 freely movabletherein between the movable member of the clutch and the adjacent endmember of the frame 2 inwhich is provided a bolt socket 7 6 coincidentwith and into which the end of the bolt is forced. by the spring whenthe cradle is in' playing position as illustrated in Fig. 5, en .ablingthe clutch members to interlock.

One wall of the socket is inclined and serves as a cam 77 to push theend of the bolt out of the socket when the cradle is rocked to take thecontact roll out of operative positicn. As the bolt rides out of thesocket it pushes the movable member of the clutch out of engagement withthe fixed member, passes onto the face of the abutment 78 and holds theclutch released until again brought into alinement with the socket whenit is shot into said socket, and the engagement of the clutch members isestablished by the spring 72. When the clutch is released the take-uproll may rot-ate upon and independently of its shaft, to permit themusic sheet to be rapidly rewound on the music roll. In the act ofthrowing the contact roll out of operation, the brake shoe 59 iswithdrawn from the brake-hub 26, by contact therewith of an arm 59 ofthe con- 73 (shown tact roll cradle, and the music roll is then free ofrestraint and will respond easily to the action of the rewind applianceshereinbefore set forth. The cradle is connected by means of a link 79 toan operating handle 7 9.

The driving motor, shown conventionally at M, Figs. 3 and 4, is in anelectrical circuit C, and this circuit may be made or broken by theusual switch-lever 80, pivoted at 80 and connected to the armature 82 ofan electromagnet 82. The armature 82 carries a contact 82 which may be aknife-contact adapted to engage a corresponding contact member 82. Thecircuit C may be made or broken at this point by manipulation of lever80. The circuit may also be broken by the handle 79 which may be made tobridge the contact-plates 81, as in Fig. 3, to make the circuit or toassume the position shown in Fig. 4 to break the circuit. It will beobserved that when the parts are shifted to playing position as in Fig.3, where the contact roll 74 is in position to cooperate with thecontacts 84 the circuit is made as a consequence of the operation of thehandle 79 to bring the parts into such playing position. When a sheet ofmusic is to be introduced into the roll holder and to be played theparts are shifted to the position shown in Fig. 4 by manipulation of thehandle 79 to facilitate passage of the music sheet between the contactroll 74 and contacts 84, and the shifting of the parts to this positionresults in breaking the circuit and cutting out the motor. Theelectro-magnet 82 is designed to be energized at the end of a piece ofmusic in a known way by a special contact switch engages the roll 74through a stop perforation at the end of the piece of music in a mannerwell known in the art, for example, as shown in the Letters Patent of G.H. Davis, No. 719,092, Jan. 27, 1903, and since this is not claimed byme I have not shown the magnet-circuit. When so energized the magnetacts upon its armature 82 and breaks the contact 82", 82 andautomatically breaks the motor circuit, cutting out the motor. Operationof the single-handle 79, it will be observed acts to withdraw thecontact roll from operation, release the take-up roll from the drivingmechanism, throw off the music-roll-brake, and cut the motor out.

Mounted on the front bar of the machine is a contact finger carrier 83in which are disposed a series of contacts 84 consisting of flexiblefingers inclined in the direction of travel of, and adapted to pass intothe note perforations of, the music sheet to make contact with thecontact roll 74 carried in the end of the cradle as best shown in Fig.4, and close circuits through magnets to actuate the key-strikers, whichmechanism is not shown herein as it constitutes no part of the presentinvention.

To thread a sheet of music paper from the music roll to the take up rollthe parts are shifted to the position shown in Fig. bringing a guard 83*carried by the cradle 7 3 in front of the contact fingers, protectingthem from possible injury during the operation.

It will be observed that the roll-holder of my invention supports andcontains within itself all the elements concerned in the transmission ofroll-driving power from the motor; that variation of speed of rotation,and sto page of rotation of the take-up roll to enab e a note or groupof notes to be prolonged or sustained, may be effected by manipulationof a single hand lever 51; and that the contact-roll may be withdrawnfrom operation, the take-up roll maybe unclutched from its shaft, thebrake withdrawn from the music-roll, and the motor cut out of operation,by manipulation of another single lever 79.

Having thus described my invention, .what I claim as new and desire tosecure by Letters Patent is 1. In a roll holder for musical instrumentplayers, the combination with a frame, a music roll and a take-up rollarranged for rotation therein, of means for rotating the take-up rollincluding transmitting elements adjustable to vary the speed of rotationof the take-up roll, one of said elements being shiftable to interrupttransmission of motion to the take-up roll, and

a lever operatively connected to control the operation of thetransmitting elements and to shift said shiftable element out of contactwith the other in all positions of adjustment of said elements.

, 2. In a roll holder for musical instrument players, the combinationwith a frame, a music roll and a takeup roll arranged for rotationtherein, of means for rotating the take-up roll including transmittingelements adjustable to vary the speed of rotation of the take-up roll,one of said elements being shiftable to interrupt transmission of motionto the take-up roll, and means operatively connected to control theoperation of the transmitting elements and to shift said shiftableelement out of contact with the other in all positions of adof music andtake-up rolls, supporting justment of said elements. I

'3. In a roll holder for musical instrument players, a music roll and atake-up roll arranged for rotation therein, means for driving thetake-up roll including friction power-transmitting elements, means forvarying the action of said transmitting ele- I ments, and fordisassociating said elements, a single lever and connections forcontrolling saidmeans, independent means for disconnecting the take-uproll from the driving means, and an independent lever for actuati ing.the same. 1

4. In a roll holder for musical instrument players, a music roll and atake-up roll arranged for rotation therein, means for driving thetake-up roll, means for Cisconnecting the take-up roll from said drivingmeans, cooperatively arranged elements to cause the instrument to speak,a perforated music sheet for making said cooperatively arranged elementsoperative, means for cutting the driving means into and out ofoperation, a motor, and a single lever connected to move said elementsout of cooperative relation, to release the takeup roll'from the drivingmeans, and to cut )ut the motor. I

5. In a roll holder for musical instrument players, a music roll and atake-upfroll arranged for rotation therein, means, including powertransmitting elements, for driving the take-up roll, means forregulating the action of said transmitting'elements and for disengagingsaid elements to interr'ipt the rotation of the take-up roll, a singlelever and connections for controlling said action-regulating anddisengaging means, independent means for disconnecting the take-up rollfrom the driving mechanism, coiiperatively arranged elements ,to causethe instrument to speak, and a single lever and intermediate connectionsfor operating the disconnecting means.

6. In a music-roll holder, the combinai ion of music and take-up rolls,supporting means for said rolls, and roll-driving mechanism includingelements adjustable to vary the speed of the driving roll, one of saidelements being also shiftable into and out of operative 'contact'with'the other in all positions of adjustment of said elements.

7. In a music roll holder, the combination of musicand take-up rolls,supporting means for said rolls, roll-driving mechanism includingelements adjustable to vary the speed of the driving roll, one of saidelements being also shiftable into and out 1 of operative contact withthe other in all positions of adjustment of said elements, and a. singlelever and connections foriadjusting the operative relation of saidelements and for interrupting such operative relation.

8. In a music roll holder, the combinai ion means for said rolls, rolldriving mechanism, transmitting elements normally automatically heldinoperative relation and adjustable in their operative relation to govern the speed of the driven roll, and one of said elements beingshiftable with relationto'the' other to interrupt theoperativeengagement thereof. a

9. In a music roll holder, the combination of 'music and take-up rolls,supporting means for said rolls, roll driving mec hai nism, transmittingelements normally automatically held in operative relation andadjustable in their operative relation to govern the speed of the drivenroll, and one of said elements being shiftable with relation to theother to interrupt the operative engagement thereof, and a single leverand connections for controlling the operative relation between thedriven elements and for interrupting said relation.

10. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, driving mechanism including a frictiontransmitting wheel and a friction drive disk, one of which is adjustablewith relation to the other to Vary the speed of rotation and shiftableto interrupt transmission of motion in all positions of adjustment ofsaid wheel and disk.

11. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll driving mechanism including afriction transmitting wheel operatively connected to drive the take-uproll, an oscillatory and longitudinally shifta le carrier, a frictiondrive disk connected to and partaking of the movements of said carrier,and means for oscillating and shifting said carrier.

12. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll driving mechanism including afriction transmitting wheel operatively connected to drive the take-uproll, an oscillatory and longitudinally shift able carrier, a frictiondrive disk connected to and partaking of the movements of said carrier,and a single lever and connections for oscillating and shifting saidcarrier.

13. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll driving mechanism including afriction transmitting wheel connected to rotate the take-up roll, anoscillatory and shifta-ble carrier, a friction drive disk connected toand partaking of the movement of said carrier, and a spring combinedwith said carrier for normally holding said drive disk in contact withth transmitting wheel.

14. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll driving mechanism including afriction transmitting wheel connected to rotate the take-up roll, afriction drive disk, an oscillatory and longitudinally shiftable carrierby which said disk is supported, and a flexible shaft combined with saiddisk.

15. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll drivingmechanism consisting of afriction transmitting wheel connected to rotate the take-up roll, africtional drive disk, a controller lever, a connection between saidlever and said drive l i v t disk for oscillating the latter, andconnections between said lever and said disk for shifting the same outof engagement with the transmittin wheel.

16. In a music roll holder, the combination of music and take-up rolls,supporting means for said rolls, roll driving mechanism including thefriction transmitting wheel connected to rotate the take-up rolls, acarrier, a friction drive disk supported thereby, a controller lever, alink connecting said lever with said carrier for oscillating the same,and connections including a rock arm between said controller lever andcarrier for shifting the same to move the drive disk out of engagementwith the transmitting wheel.

17. Ina music roll holder, a shaft, means for driving said shaft, atake-up roll loose on said shaft, a clutch connecting said roll to saidshaft, a movable cradle, a contact roll carried thereby, and means madeoperative by movement of said cradle to disconnect the clutch membersand thereby release the connection of the roll with the shaft.

18. In a music roll holder, a shaft, means for driving said shaft, atake-up roll arranged on said shaft and rotatable independently thereof,a clutch for connecting said roll to said shaft, the members of whichare normally in engagement, a movable cradle, a contact roll carriedthereby, and a bolt associated with said cradle and operating when thecradle is moved to take the contact roll out of operative position tounclutch the roll from the shaft.

19. In a music roll holder, a shaft, means for driving said shaft, atake-up roll mounted on said shaft and rotatable independently thereof,a clutch for connecting said roll to said shaft, a spring normallyholding the members of the clutch in engagement, a movable cradle, acontact roll carried thereby, and a bolt associated with said cradle andadapted to release the clutch when the cradle is moved to take thecontact roll out of operative position.

20. In a music roll holder, contact fingers and a contact roll adaptedto operate therewith, a movable cradle in which the roll is mounted,means for moving said cradle to bring the contact roll into and out ofoperative position, and a guard carried by said cradle in position toprotect the contact fingers when the contact roll is moved away from thefingers.

21. In a music roll holder, a shaft, means for driving said shaft, atake-up roll mounted on said shaft, a clutch for connecting said roll tosaid shaft, contact fingers, a contact roll to cooperate therewith, amovable cradle in which the contact roll is mounted, contact plates 81,a single lever arranged to engage said contact plates, and connected tosaid cradle, whereby said single lever con- 1 trols the movement of thecontact roll, and the operation of the clutch, and opens or bridges thecontact plates.

22. In a music roll holder, the combination with music and take-uprolls, of a shaft on which the take-up roll is loosely arranged, meansfor driving said shaft, means for clutching said roll to said shaft,amusic roll brake, contact-plates, a series of contact fingers, acontact roll cooperating therewith, a movable cradle in which saidcontact roll is carried, and a single lever and connections adaptedtomove said cradle, clutch and brake and arranged alternately to open orbridge the contact plates.

23. In combination with a slide, a music roll holder pivoted thereto,and means for maintaining the roll holder in line with the sli e.'

24. The combination with a slide, a music roll holder pivoted thereto,and a catch aarried by one of said parts and engaging the other of saidparts for maintaining the roll holder in line with the slide.

In testimony whereof I have hereuntc set my hand in presence of twosubscribing witnesses.

IRVING B. SMITH.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patmts. Washington, D. C.

